Multiple choice

The calorific value of hydrogen is __________.

  1. 32 kJ/g

  2. 77 kJ/g

  3. 150 kJ/g

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydrogen has the highest calorific value among common fuels, approximately 150 kJ/g. This is because hydrogen forms water (H₂O) upon combustion, releasing a large amount of energy per gram due to its low atomic mass and strong bond formation.

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